论文部分内容阅读
研究发现,Ⅱ号杀雄剂(甲基胂酸二钠)应用于水稻化学杀雄,受用药期间的温度影响较大,高温年份用100ppm杀雄效果就达99％以上,低温年份160ppm的杀雄效果也只有98％。因此,不同年份、不同地点、不同时间的用药浓度(除了视苗情而外)应依据当时当地的温度而定。此外,氮素肥料和植物生长激素的使用,对杀雄效果和制种产量也有一定的影响。
The study found that Ⅱ killing agent (sodium cacodylate) used in chemical killing of rice by the temperature during the medication a greater impact on high-temperature use of 100ppm kill effect reached 99%, 160ppm low-temperature year killed Male effect is only 98%. Therefore, in different years, different locations, at different times of drug concentration (except depending on the Miao situation) should be based on the local temperature. In addition, the use of nitrogen fertilizers and plant growth hormones also have some effect on the killing effect and the seed production.